Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
6,154 questions
Can't sign in to Microsoft 365
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Tobias Putz
0
Reputation points
Good day,
I purchased a Microsoft 365 Business Premium account a month ago.
Due to switching to a new phone, all other 2FA codes were transferred except this one. I am the only admin. I have reset my old phone. It's the same problem as described here: https://answers.microsoft.com/de-de/msoffice/forum/all/altes-handy-kaputt-kein-zugriff-auf-authenticator/4c020c3a-ce28-4d7d-a7b2-1dfba6ebc916
I have no way to contact support through the website, and I cannot reach anyone by phone (tried various numbers at different times of the day).
Please provide quick assistance.